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science & technology Online Quiz - 490

Description: science & technology Online Quiz - 490
Number of Questions: 20
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Tags: science & technology
Attempted 0/20 Correct 0 Score 0

pH is the concentration of H+ ion in any liqiuid.pH of water is 7. pH can range from 1 to 14. what is the pH of blood?

  1. 7.1-7.2

  2. 7.35 – 7.45

  3. 0

  4. 7


Correct Option: B

A high BP patient should take lot of fruits and eat less spice and salt. A low BP petient should increase intake of salt and take water frequently. what is normal Blood pressure level? what is high BP level and low BP level?

  1. 110/90,140/100 & 70/50

  2. 120/80,140/90 & symptoms of low blood flow

  3. 110/90,140/100 & 80/60

  4. i don know


Correct Option: B
  1. gases & clouds

  2. large pieces of ice and rock

  3. wind & storms

  4. none of the above


Correct Option: B

Which planet has the most moons?

  1. Saturn

  2. Earth

  3. Jupiter

  4. Neptune


Correct Option: C
  1. Ariel, a satellite

  2. Salyut space station

  3. Luna, a spacecraft

  4. Skylab, a space station


Correct Option: D

Which of the following particle is a fundamental particle?

  1. Electron and Proton

  2. Neutron

  3. Quark

  4. None of the above


Correct Option: C
  1. J.J.Thompson

  2. J. Dalton

  3. Rutherford

  4. All the above


Correct Option: B

Joseph Thompson discovered ?

  1. Atom

  2. Proton

  3. Neutron

  4. Electron


Correct Option: D
  1. Rutherford

  2. Einstein

  3. Maxwell

  4. Dalton


Correct Option: A

Who discovered chargeless and massive particle?

  1. J.J.Thompson

  2. J. Chadwick

  3. J. Dalton

  4. Both 1 & 2


Correct Option: B

Blaze Pascal is associated with

  1. Calculating machine

  2. Computer

  3. Typewriter

  4. Work


Correct Option: A

Chemically baking soda is

  1. Baker's Yeast

  2. Sodium carbonate

  3. Sodium bicarbonate

  4. Sodium cloride


Correct Option: C

Who invented the ball point pen ?

  1. Waterman

  2. Oscar

  3. Wilson

  4. Lazlo Biro


Correct Option: D
  1. Edward Jenner

  2. Jonon Esals

  3. Willium Harvery

  4. Joseph Lister


Correct Option: C
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